Improvement in nut-locks



U NITED STATES PATENT OFFICE. A

JOSEPH H. :WEBSTER, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF HIS RIGHT TO WILLIAM L.- REYNOLDS, OF SAME PLACE.

IMPROVEMENT IN NUT-LOCKS.

Specification forming part of Letters Patent No. 1-72,S05, dated January .25, 1876; application filed.

- Novemberfl, 1875.

ment is fully set forth in the following specifi-- cation, reference being bad to the accompanying drawings. 1

My improvement consists in a square nut with the screw-hole made eccentric, so that one part of the nut shall have such preponderancein weight that itwill remain at bottom, and the but will not be shaken from the bolt, even if loose upon it.

In the drawings, Figure 1 is a perspective view. Fig. 2 is an end view of the nut.

A shows an ordinary fish-plate bolt. B is the nut, having a screw-hole, b, eccentric to the body of. metal, so that the part or side 0 shall have preponderance over the part c, andv so that the part 0 will remain at bottom, however violently the bolt maybe shaken, and

consequently thenut cannot becomeunscrewed from the bolt.

The bolt-is prevented from turning by the enlargements a at the head. The nut may be square, as shown, or any form of polygon,

but in any case the sides would have uniformity of length, so that a single wrench would fit the nut in all positions.

In applying the bolt, ifit is found that the part0 comes to such a place when the nut is tightened as to tend by gravity to loosen the nut, the nut is unscrewed sufliciently to allow the bolt to be turned half around, and the nut screwed up, when its tendency willibe-to tighten on the bolt by shaking.

This nut contains the same amount of metal as an ordinary nut, and can be manufactured at the same price. I

I claim as my invention-'- A'nut, B, having its sides *of equal length, and with its screw-hole b placed eccentrically, substantially as set forth. V JOSEPH H. WEBSTER.

Witnesses:

SAML. KNIGHT, H. HUTOHINS- 

